CN102860180A - Brake apparatus - Google Patents
Brake apparatus Download PDFInfo
- Publication number
- CN102860180A CN102860180A CN201110185875XA CN201110185875A CN102860180A CN 102860180 A CN102860180 A CN 102860180A CN 201110185875X A CN201110185875X A CN 201110185875XA CN 201110185875 A CN201110185875 A CN 201110185875A CN 102860180 A CN102860180 A CN 102860180A
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- Prior art keywords
- brake block
- brake
- driving wheel
- brake gear
- moving
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Abstract
A brake apparatus comprises a driving wheel, dynamic brake pads, a static brake pad and a driving mechanism. The driving wheel rotates around an axle, the dynamic brake pads are mounted on the driving wheel through a rotary shaft, and the driving mechanism is fixedly connected with a main output shaft. When the driving wheel loses driving force, the driving mechanism drives the dynamic brake pads to rotate around the rotary shaft to be contacted with the static brake pad.
Description
Technical field
The present invention relates to a kind of garden type electric tool, be related to more specifically the brake gear of a kind of garden type electric tool.
Background technology
In existing garden type electric tool such as mower structure, usually take brake gear to suppress the High Rotation Speed of blade also until it is halted state, employed brake gear in the present mower, mainly include electric brake and mechanical brake, and in mechanical brake, usually utilize the purpose of the poor realization brake of centrifugal force, electromagnetic brake and relative rotation speed.Brake gear in a kind of mower, announce shown in the CN201352898 patent such as Chinese patent, it has disclosed a kind of brake gear that utilizes the mower of the poor realization brake function of relative rotation speed, one axle sleeve is set between brake disc and output shaft in this brake gear, the cooperation of the pin that connects by the side surface at the axle sleeve skewed slot that forms and the output shaft that is connected, and by pin in skewed slot slip so that finish brake and the duty of mower, in the aforementioned techniques scheme, because the relative sliding of pin in skewed slot, so that belt can produce axial wobble in transmission process, so that the stability of whole brake gear and reliability are all very low, and this of mower kind of brake gear is when braking, need to overcome extra load can finish, and can not satisfy the requirement of energy savings.
Therefore, necessaryly provide a kind of new brake gear to overcome the defective of prior art.
Summary of the invention
The object of the present invention is to provide a kind of brake gear, it is simple in structure, and power consumption is lower.
For reaching above-mentioned purpose, the present invention proposes a kind of brake gear, it comprises: the driving wheel that rotates around its axis, the driving mechanism that is installed on the moving brake block on the described driving wheel, quiet brake block and is fixedly connected with main output shaft by a rotating shaft, wherein when described driving wheel loses driving force, under the effect of blade inertia, thereby driving mechanism drives moving brake block and rotates around rotating shaft and contact with quiet brake block, thereby so that blade speed is slack-off and finally stop.
The invention has the beneficial effects as follows: by the moving brake block at brake gear skewed slot is set, in that being arranged at, bearing pin this bearing pin is slided in skewed slot after stirring in the element, when brake, under the effect of inertia of blade, so that pivot pin rotates a certain angle around main output shaft, and then drive moving brake block and be resisted against on the inner surface of quiet brake block, reach braking effect.
Description of drawings
Fig. 1 is the three-dimensional exploded view of the brake gear of one embodiment of the invention.
Fig. 2 be among Fig. 1 brake gear remove assembly drawing behind the casing.
Fig. 3 is the vertical view of brake gear under non-braking state shown in Figure 2.
Fig. 4 is the vertical view of brake gear under braking state shown in Figure 2.
Fig. 5 is the cutaway view of brake gear C-C along the line shown in Figure 3.
Embodiment
Below in conjunction with the drawings and specific embodiments brake gear of the present invention is described in further detail.
Please refer to shown in Figure 1ly, casing 1 includes upper casing 11 and lower casing (not shown), wherein has to accommodate motor and two parts that are connected load fan and blade 12 on the upper casing 11.This upper casing 11 comprises top board 110 and the sidewall 111 that extends vertically downward along top board 110, thereby the effect by top board 110 and sidewall 111 is so that whole upper casing 11 forms a semi-enclosed chamber.
Bearing pin 3 includes three altogether, and it is assembled in respectively in the second through hole 210 of stirring element 2.
The quantity of moving brake block 4 is three, three moving brake block 4 intervals arrange and between adjacent two between be separated with a segment distance, wherein on each moving brake block 4 away from moving brake block 4 and quiet brake block 5 during at braking state contacted position be formed with balancing weight 40, and this balancing weight 40 can avoid moving brake block 4 and quiet brake block 5 to contact when non-braking state.Be recessed to form a skewed slot 41 downwards with the balancing weight 40 alternate positions that are separated with a segment distance on the moving brake block 4, between this skewed slot 41 and balancing weight 40, be formed with a perforation 42.
Please refer to Fig. 1 to shown in Figure 2, main output shaft 6 is arranged on the upper casing 11 by the bearing 61 that connects on the one end, and its by flat key 9 with stir that element 2 is fixedly connected and then be fixedly connected with bearing pin 3, the lower end of main output shaft is connected with another bearing 62, and be connected with load at the lower end of main output shaft 6, be specially fan and blade (not shown).Be arranged in the skewed slot 41 to form a driving mechanism after described bearing pin 3 is fixedly connected with main output shaft 6, when main output shaft 6 is struck after element 2 drives rotation, fan and blade be together rotation thereupon, thereby can make mower in running order.
Be provided with three projections 70 that are placed between adjacent two moving brake blocks 4 on the end face of driving wheel 7, this projection 70 is passed to driving mechanism and main output shaft 6 with the rotation of driving wheel 7.Between two adjacent projections 70, be formed with and the 41 corresponding installing holes 71 of boring a hole.
Rotating shaft 8 is arranged in the installing hole 71 of driving wheel 7 after being arranged in the perforation 42 that is formed between balancing weight 40 and the skewed slot 41.Along the axis direction of driving wheel 7, the barycenter of described moving brake block 4 and moving brake block 4 and quiet brake block 5 contacted parts lay respectively at the both sides of described rotating shaft 8.
Please refer to Fig. 1 to Fig. 2 and extremely shown in Figure 5 in conjunction with Fig. 3, casing 1 will move brake block 4, quiet brake block 5, driving mechanism and driving wheel 7 and be arranged at wherein.The brake principle of brake gear 100 is: when being in non-braking state, belt (not shown) drives driving wheel 7 and 4 motions of moving brake block and stirs element 2 by the effect promotion of the projection 70 on the driving wheel 7 and move, stir element 2 and drive main output shaft 6 rotations by flat key 9, be connected in the cutting element High Rotation Speed on the main output shaft this moment; During brake, driving wheel 7 loses driving force, but blade can be rotated further owing to inertia, stirring element 2 this moment rotates with pivot pin 3, because pivot pin 3 is arranged in the skewed slot 41 of moving brake block, therefore moving brake block can contact towards motion outside the circumference of driving wheel and then with the inner surface of quiet brake block 5 under the effect of bearing pin 3, when the angle of rotating when bearing pin 3 was enough large, the frictional force between moving brake block and the quiet brake block was just enough so that blade speed is slack-off and finally stop to reach braking effect.
Among the present invention, when described driving wheel 7 rotated, driving mechanism and main output shaft 6 rotated with driving wheel 7, and when described driving wheel 7 loses driving force, contact with quiet brake block 5 around rotating shaft 8 rotations thereby driving mechanism drives moving brake block 4.
Claims (9)
1. a brake gear is characterized in that, comprising:
Driving wheel rotates around its axis;
Moving brake block is installed on the described driving wheel by a rotating shaft;
Quiet brake block; And
Driving mechanism is fixedly connected with main output shaft, wherein when described driving wheel loses driving force, contacts with quiet brake block around the rotating shaft rotation thereby driving mechanism drives moving brake block.
2. brake gear as claimed in claim 1, it is characterized in that: along the axis direction of driving wheel, the barycenter of described moving brake block and moving brake block and the contacted part of quiet brake block lay respectively at the both sides of described rotating shaft.
3. brake gear as claimed in claim 2, it is characterized in that: described moving brake block include be formed at its end avoiding described brake gear moving brake block and the contacted balancing weight of quiet brake block when the non-braking state, and described rotating shaft is arranged between balancing weight and the skewed slot.
4. brake gear as claimed in claim 1 is characterized in that: described driving mechanism comprises the bearing pin that is fixedly connected with main output shaft and is arranged at skewed slot on the described moving brake block.
5. brake gear as claimed in claim 4, it is characterized in that: described driving mechanism comprises that is also stirred an element, described bearing pin is fixedly connected with main output shaft by stirring element.
6. brake gear as claimed in claim 5, it is characterized in that: the described element of stirring includes body and is formed at some protuberances around the described body, on described protuberance, be formed with run through described protuberance upper and lower surface to accommodate the through hole of described bearing pin.
7. brake gear as claimed in claim 6, it is characterized in that: the quantity of described protuberance is three.
8. brake gear as claimed in claim 1 is characterized in that: be provided with projection on the end face of described driving wheel, the rotation of driving wheel is passed to driving mechanism and main output shaft.
9. brake gear as claimed in claim 1 is characterized in that: described brake gear also includes driving wheel, moving brake block, quiet brake block and driving mechanism is assembled in wherein casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110185875.XA CN102860180B (en) | 2011-07-05 | 2011-07-05 | Brake apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110185875.XA CN102860180B (en) | 2011-07-05 | 2011-07-05 | Brake apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102860180A true CN102860180A (en) | 2013-01-09 |
| CN102860180B CN102860180B (en) | 2014-10-15 |
Family
ID=47439535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110185875.XA Expired - Fee Related CN102860180B (en) | 2011-07-05 | 2011-07-05 | Brake apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102860180B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179525A (en) * | 2015-10-22 | 2015-12-23 | 王宪立 | Hydraulic brake device of combine harvester |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5259630U (en) * | 1975-10-29 | 1977-04-30 | ||
| EP0903006A1 (en) * | 1996-05-31 | 1999-03-24 | Fhp Elmotor Aktiebolag | Braking system for electric motors |
| CN2793420Y (en) * | 2004-12-17 | 2006-07-05 | 常州合力电器有限公司 | Fast inertia brake |
| CN101467507A (en) * | 2007-12-27 | 2009-07-01 | 苏州宝时得电动工具有限公司 | Brake device of garden tools |
-
2011
- 2011-07-05 CN CN201110185875.XA patent/CN102860180B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5259630U (en) * | 1975-10-29 | 1977-04-30 | ||
| EP0903006A1 (en) * | 1996-05-31 | 1999-03-24 | Fhp Elmotor Aktiebolag | Braking system for electric motors |
| CN2793420Y (en) * | 2004-12-17 | 2006-07-05 | 常州合力电器有限公司 | Fast inertia brake |
| CN101467507A (en) * | 2007-12-27 | 2009-07-01 | 苏州宝时得电动工具有限公司 | Brake device of garden tools |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179525A (en) * | 2015-10-22 | 2015-12-23 | 王宪立 | Hydraulic brake device of combine harvester |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102860180B (en) | 2014-10-15 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141015 Termination date: 20210705 |
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| CF01 | Termination of patent right due to non-payment of annual fee |